CN203661273U - Sound channel correction-type horn - Google Patents
Sound channel correction-type horn Download PDFInfo
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- CN203661273U CN203661273U CN201320877013.8U CN201320877013U CN203661273U CN 203661273 U CN203661273 U CN 203661273U CN 201320877013 U CN201320877013 U CN 201320877013U CN 203661273 U CN203661273 U CN 203661273U
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- 210000000867 larynx Anatomy 0.000 claims description 32
- 230000000644 propagated effect Effects 0.000 claims description 4
- 230000001902 propagating effect Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The utility model discloses a sound channel correction-type horn. The sound channel correction-type horn includes a horn throat and a horn mouth which are respectively located at two ends of the horn; the horn throat is connected with the horn mouth through a plurality of sound channels; the sound channels include outer sound channels located at the two sides of the horn and a plurality of inner sound channels located between the two sound channels; inner walls at two sides of each outer sound channel are planes; inner walls at two sides of each inner sound channel are cambered surfaces; protruding directions of the cambered surfaces of the inner walls of adjacent inner sound channels are not exactly the same; the differences of paths of sound waves travelling in each sound channel from the horn throat and the horn mouth is smaller than 1/4 of the upper limit wavelength of sound waves required to be used; and the differences of paths of sound waves travelling in the same sound channel is smaller than 1/4 of the upper limit wavelength of the sound waves required to be used. Since the differences of the paths of the sound waves travelling in each sound channel is smaller than 1/4 of the upper limit wavelength of the sound waves required to be used, when the sound waves arrive at the horn mouth, the sound waves can accord with the characteristics of plane waves, and the sound waves in the same sound channel also accord with the characteristics of the plane waves.
Description
Technical field
The utility model relates to public-address system field, particularly a kind of novel track correction transmitter.
Background technology
General linear array speaker meets line array loudspeaker unit by several and forms.Requirement to used loud speaker is: the sound wave of loud speaker radiation is the state work with almost plane ripple desired frequency of utilization scope planted agent, and when sound wave is by many loud speaker co-operation, the wave surface of its formation is also similar to the state of plane wave.In the time of lower frequency work, be comparison easy to reach, and in higher frequency, due to reason on loadspeaker structure, ventional loudspeakers just is relatively difficult to reach.
Especially require high-power, in the situation of high sound intensity, in the time that loud speaker must use compressed drive to add horn, insoluble problem especially.So occurred technology such as curve type horn, elongated spacing horn solving problems.
The aerial propagation velocity of sound wave is about 340 metre per second (m/s)s (15 ℃), and the wavelength of sound wave equals sound propagation velocity divided by sound wave frequency, and in the time that sound wave frequency is higher, the wavelength of sound wave is shorter.The path of normally used elongated spacing horn center radiation sound is always shorter than along the path of horn wall radiated sound.When operating frequency height is to a certain extent time, near the path of horn center radiation sound and horn wall, the poor footpath in the path of radiated sound reaches while being greater than the corresponding frequency of 1/4 wavelength, total sound wave output just loses the characteristic of plane wave gradually, thereby progressively change the characteristic with spherical wave output into, this just affects the feature of the plane wave of whole linear array, cause the interference of sound wave, affected the sound output of higher frequency.
Utility model content
The purpose of this utility model is to provide the novel track correction transmitter that can make horn adapt to higher frequency sound wave.
In order to realize the purpose of this utility model, the technical scheme of taking is:
A kind of track correction transmitter, comprise the horn larynx and the horn mouth that lay respectively at horn two ends, between horn larynx and horn mouth, be communicated with by multiple sound channels, described sound channel comprise the outer sound channel of horn both sides and outside two the multiple interior sound channel between sound channel, the inwall of described outer sound channel both sides is plane, the inwall of described interior sound channel both sides is cambered surface, the direction of the cambered surface projection of the inwall of adjacent interior sound channel is incomplete same, along horn larynx to horn mouth, the difference in the path that sound wave is propagated in each sound channel is less than 1/4th of required use sound wave upper limit wavelength, and in same sound channel, the path difference of Acoustic Wave Propagation is less than 1/4th of required use sound wave upper limit wavelength.
Sound wave is broadcast to horn oral instructions through sound channel from the horn larynx of horn, the path difference of propagating in each sound channel due to sound wave is less than 1/4th of required use sound wave upper limit wavelength, while arriving horn mouth, sound wave meets the feature of plane wave, poor 1/4th of the required use sound wave upper limit wavelength that is also less than of acoustic wave propagation path in same sound channel, thereby make sound wave in same sound channel also meet the feature of plane wave, adopt in this way, i.e. raising sound wave frequency, also can meet the feature that keeps plane wave when sound wave arrives horn mouth, sound wave is after sound channel, acoustic pressure improves, reach the object amplifying, due to the horn mouth at outer sound channel place from the air line distance of horn larynx away from, the horn mouth of interior sound channel from the air line distance of horn larynx close to, the inwall of outer sound channel is designed to plane, in outer sound channel, the propagation distance of sound wave equals center line axial length, the inwall of interior sound channel is arranged to cambered surface, thereby can increase the propagation distance of sound wave in interior sound channel, thereby make the propagation path approximately equal of sound wave in interior sound channel and outer sound channel, finally make the sound wave of arrival tube port position meet plane wave feature.
Below technical scheme is further illustrated:
Preferably, the described sound channel that is positioned at the same side, horn center comprises that inwall is the first sound channel of C type cambered surface and the second sound channel of the S-type cambered surface of inwall, and the second interior sound channel is between horn center and the first interior sound channel.Because the horn mouth of the interior sound channel near horn center is nearer apart from the air line distance of horn larynx, by the second interior sound channel is designed to S type cambered surface, can in the case of the radian of cambered surface is less, just can realize and increase the propagation path of sound wave in second sound channel.
Preferably, described interior number of channels is four.Adopt in this way, simple in structure, horn occupies little space, and result of use is good.
Preferably, the flexibility of the inwall of described the first interior sound channel is less than the flexibility of the inwall of the second interior sound channel.The inwall of the first interior sound channel is C type cambered surface, the S-type cambered surface of inwall of the second interior sound channel, the flexibility of, C type cambered surface large S-shaped by increasing, the path that can make sound wave propagate in the first interior sound channel and the path of propagating in the second interior sound channel equate with the path proximity of propagating in sound channel outside, keep the feature of plane wave while making sound wave arrival tube port position.
Preferably, described horn larynx is rounded, and each described horn mouth is square.The rounded round exit that can connected compressed drive of horn larynx is suitable, and horn mouth is square, and obtains the switching device of high-frequency approximation linear sound with this.
Preferably, the gross area of described horn mouth is greater than the area of described horn larynx.
Preferably, the width of described horn mouth is consistent with the diameter of horn larynx.In the time that the width of horn mouth is close with the diameter of horn larynx, effect is better.
Preferably, each sound channel therein on the same height of the heart axis direction cross-sectional area equate.Adopt in this way, can make the sound wave of output better meet the feature of plane wave.
Preferably, the central axis length of each sound channel is identical.When the central axis of each sound channel is identical, the propagation path of sound wave in each sound channel is also identical, thereby makes sound wave better meet plane wave feature out time from horn mouth.
The utility model has the advantages that:
Sound wave is broadcast to horn oral instructions through sound channel from the horn larynx of horn, the path difference of propagating in each sound channel due to each sound wave is less than 1/4th of required use sound wave upper limit wavelength, while arriving horn mouth, sound wave meets the feature of plane wave, poor 1/4th of the required use sound wave upper limit wavelength that is also less than of acoustic wave propagation path in same sound channel, thereby make sound wave in same sound channel also meet the feature of plane wave, adopt in this way, even raising sound wave frequency, also can meet the feature that keeps plane wave when sound wave arrives horn mouth, sound wave is after sound channel, acoustic pressure improves, reach the object of public address, due to the horn mouth at outer sound channel place from the air line distance of horn larynx away from, the horn mouth of interior sound channel from the air line distance of horn larynx close to, the inwall of outer sound channel is designed to plane, in outer sound channel, the propagation distance of sound wave equals the wherein length of bobbin thread, the inwall of interior sound channel is arranged to cambered surface, thereby can increase the propagation distance of sound wave in interior sound channel, thereby make the propagation path approximately equal of sound wave in interior sound channel and outer sound channel, finally make the sound wave of arrival tube port position meet plane wave feature.
Accompanying drawing explanation
Fig. 1 is the schematic diagram one of the utility model track correction transmitter;
Fig. 2 is the schematic diagram two of the utility model track correction transmitter;
Fig. 3 is the front view of the utility model track correction transmitter;
Fig. 4 is the end view of Fig. 3;
Fig. 5 is the vertical view of Fig. 3;
Fig. 6 is the upward view of Fig. 3.
100. horn larynxs, 200. horn mouths, 301. outer sound channels, 302. interior sound channels, 312. first interior sound channels, 322. second interior sound channels, the inwall of 303. interior sound channels, 400. horn centers.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated:
As shown in Fig. 1-6, in embodiment of the present utility model, a kind of track correction transmitter, comprise the horn larynx 100 and the horn mouth 200 that lay respectively at horn two ends, between horn larynx 100 and horn mouth 200, be communicated with by multiple sound channels, described sound channel comprise the outer sound channel 301 of horn both sides and outside two the multiple interior sound channel 302 between sound channel 301, the inwall of described outer sound channel 301 both sides is plane, the inwall of described interior sound channel 302 both sides is cambered surface, the direction of the cambered surface projection of the inwall 303 of adjacent interior sound channel is incomplete same, along horn larynx 100 to horn mouth 200, the difference in the path that sound wave is propagated in each sound channel is less than 1/4th of required use sound wave upper limit wavelength, and in same sound channel, the path difference of Acoustic Wave Propagation is less than 1/4th of required use sound wave upper limit wavelength.
Sound wave is propagated to horn mouth 200 through sound channel from the horn larynx 100 of horn, the path difference of propagating in each sound channel due to each sound wave is less than 1/4th of required use sound wave upper limit wavelength, while arriving horn mouth 200, sound wave meets the feature of plane wave, poor 1/4th of the required use sound wave upper limit wavelength that is also less than of acoustic wave propagation path in same sound channel, thereby make sound wave in same sound channel also meet the feature of plane wave, adopt in this way, even raising sound wave frequency, also can meet the feature that keeps plane wave when sound wave arrives horn mouth 200, sound wave is after sound channel, acoustic pressure improves, reach the object of public address, due to the horn mouth 200 at outer sound channel 301 places from the air line distance of horn larynx 100 away from, the horn mouth 200 of interior sound channel 302 from the air line distance of horn larynx 100 close to, the inwall of outer sound channel 301 is designed to plane, the propagation distance of outer sound channel 301 interior sound waves equals central axis length, the inwall of interior sound channel 303 is arranged to cambered surface, thereby can increase the propagation distance of sound wave in interior sound channel 302, thereby make the propagation path approximately equal of sound wave in interior sound channel 302 and outer sound channel 301, finally make the sound wave that arrives horn mouth 200 places meet plane wave feature.
The described sound channel 302 that is positioned at 400 the same sides, horn center comprises that inwall is the first sound channel 312 of C type cambered surface and the interior sound channel 322 of the second sound channel 322, the second of the S-type cambered surface of inwall between horn center 400 and the first interior sound channel 312.Because the horn mouth 200 of the interior sound channel 302 near horn center 400 is nearer apart from the air line distance of horn larynx 100, by the second interior sound channel 322 is designed to S type cambered surface, can in the case of the arc length of cambered surface is less, just can realize and increase the propagation path of sound wave in second sound channel.
Described interior sound channel 302 quantity are four.Adopt in this way, simple in structure, take up room less, result of use is good.
The flexibility of the inwall of described the first interior sound channel 312 is less than the flexibility of the inwall of the second interior sound channel 322.The inwall of the first interior sound channel 312 is C type cambered surface, the S-type cambered surface of inwall of the second interior sound channel 322, by increasing the radian of C type cambered surface, can make sound wave equate with the path proximity of outer sound channel 301 interior propagation with the path in the second interior sound channel 322 interior propagation in the path of the first interior sound channel 312 interior propagation, while making sound wave arrive horn mouth 200 place, keep the feature of plane wave.
Described horn larynx 100 is rounded, and described horn mouth 200 is square.The rounded round exit that can connected compressed drive of horn larynx 100 is suitable, and each horn mouth 200 is all square, and obtains the switching device of high-frequency approximation linear sound with this.
The width of described horn mouth 200 is consistent with the diameter of horn larynx 100.In the time that the width of horn mouth 200 is close with the diameter of horn larynx 100, effect is better.
The gross area of described horn mouth 200 is greater than the area of described horn larynx 100.
Each sound channel cross-sectional area on the same height of central axial direction equates.Adopt in this way, can make the sound wave of output better meet the feature of plane wave.
The central axis length of each sound channel is identical.When the central axis of each sound channel is identical, the propagation path of sound wave in each sound channel is also identical, thereby makes sound wave better meet plane wave feature out time from horn mouth.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. a track correction transmitter, it is characterized in that, comprise the horn larynx and the horn mouth that lay respectively at horn two ends, between horn larynx and horn mouth, be communicated with by multiple sound channels, described sound channel comprise the outer sound channel of horn both sides and outside two the multiple interior sound channel between sound channel, the inwall of described outer sound channel both sides is plane, the inwall of described interior sound channel both sides is cambered surface, the direction of the cambered surface projection of the inwall of adjacent interior sound channel is incomplete same, along horn larynx to horn mouth, the difference in the path that sound wave is propagated in each sound channel is less than 1/4th of required use sound wave upper limit wavelength, and in same sound channel, the path difference of Acoustic Wave Propagation is less than 1/4th of required use sound wave upper limit wavelength.
2. track correction transmitter according to claim 1, it is characterized in that, the described sound channel that is positioned at the same side, horn center comprises that inwall is the first sound channel of C type cambered surface and the second sound channel of the S-type cambered surface of inwall, and the second interior sound channel is between horn center and the first interior sound channel.
3. track correction transmitter according to claim 2, is characterized in that, described interior number of channels is four.
4. track correction transmitter according to claim 2, is characterized in that, the flexibility of the inwall of described the first interior sound channel is less than the flexibility of the inwall of the second interior sound channel.
5. according to the track correction transmitter described in claim 1-4 any one, it is characterized in that, described horn aditus laryngis is rounded, and each described horn mouth is square.
6. track correction transmitter according to claim 5, is characterized in that, the gross area of described horn mouth is greater than the area of described horn larynx.
7. according to the track correction transmitter described in claim 1-4 any one, it is characterized in that, each sound channel therein on the same height of the heart axis direction cross-sectional area equate.
8. track correction transmitter according to claim 7, is characterized in that, the central axis length of each sound channel is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877013.8U CN203661273U (en) | 2013-12-25 | 2013-12-25 | Sound channel correction-type horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877013.8U CN203661273U (en) | 2013-12-25 | 2013-12-25 | Sound channel correction-type horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661273U true CN203661273U (en) | 2014-06-18 |
Family
ID=50927619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877013.8U Expired - Lifetime CN203661273U (en) | 2013-12-25 | 2013-12-25 | Sound channel correction-type horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203661273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110248292A (en) * | 2018-03-08 | 2019-09-17 | Jvc 建伍株式会社 | Cylinder larynx and speaker system |
-
2013
- 2013-12-25 CN CN201320877013.8U patent/CN203661273U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110248292A (en) * | 2018-03-08 | 2019-09-17 | Jvc 建伍株式会社 | Cylinder larynx and speaker system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Assignor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Contract record no.: X2020980000388 Denomination of utility model: Track correction transmitter Granted publication date: 20140618 License type: Exclusive License Record date: 20200228 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Track correction transmitter Effective date of registration: 20200302 Granted publication date: 20140618 Pledgee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Registration number: Y2020980000413 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Assignor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Contract record no.: X2020980000388 Date of cancellation: 20220217 |
|
| EC01 | Cancellation of recordation of patent licensing contract | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220217 Granted publication date: 20140618 Pledgee: Science City (Guangzhou) Finance Leasing Co.,Ltd. Pledgor: GUANGZHOU RUIFENG AUDIO TECHNOLOGY Corp.,Ltd. Registration number: Y2020980000413 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |